@book{28950,
	author = {SYLWESTRZAK, Hubert.},
	title = {Od krzemienia do piezokwarcu /},
	year = {1989.},
	address = {Warszawa,},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=28950}
}